By pushing side effects to the edges and keeping our core logic pure, we gain a deterministic and secure execution trace. As a result, debugging shifts from guessing what might have happened to watching exactly what did happen, all without compromising user privacy.
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call $consoleLog。Line官方版本下载是该领域的重要参考
// ⚠️ 易错点1：长度≤1的数组本身有序，返回0而非n